A threat level opens once the host has won an operation on the level below it. The levels the host has open count for the whole squad.
| Threat | Effect | Final round | Holdout length |
|---|
| I Skirmish | - -30% Zombie Health
- -8% Zombie Speed
- -25% Zombie Damage
- -20% Zombie Count
- No spitters
| 8 | 6 min |
|---|
| II Contested | - -15% Zombie Health
- -4% Zombie Speed
- -10% Zombie Damage
- -10% Zombie Count
- Spitters from round 7
| 10 | 8 min |
|---|
| III Overrun | | 12 | 10 min |
|---|
| IV Red Zone | - +15% Zombie Health
- +4% Zombie Speed
- +15% Zombie Damage
- +10% Zombie Count
- Round 1 plays as round 3
- Spitters from round 5
| 15 | 12 min |
|---|
| V Black Zone | - +30% Zombie Health
- +8% Zombie Speed
- +30% Zombie Damage
- +20% Zombie Count
- Round 1 plays as round 5
- Spitters from round 3
- 4% Veteran Chance
- 2 Max Veterans
| 18 | 14 min |
|---|
| VI No Man's Land | - +50% Zombie Health
- +12% Zombie Speed
- +50% Zombie Damage
- +30% Zombie Count
- Round 1 plays as round 7
- Spitters from round 1
- 6% Veteran Chance
- 3 Max Veterans
| 22 | 16 min |
|---|
| VII Dead Sector | - +75% Zombie Health
- +15% Zombie Speed
- +75% Zombie Damage
- +40% Zombie Count
- Round 1 plays as round 9
- Spitters from round 1
- 8% Veteran Chance
- 4 Max Veterans
- No final round
| Endless | 20 min |
|---|
Rewards
| Threat | XP | Mastery XP | Victory XP | First clear XP | Claw tokens | Title |
|---|
| I Skirmish | x1 | x1 | 300 | 500 | 1 | Skirmisher |
|---|
| II Contested | x1.15 | x1.1 | 450 | 750 | 1 | Line Holder |
|---|
| III Overrun | x1.3 | x1.2 | 600 | 1,000 | 2 | Rearguard |
|---|
| IV Red Zone | x1.5 | x1.35 | 800 | 1,500 | 2 | Red Zone Runner |
|---|
| V Black Zone | x1.75 | x1.5 | 1,000 | 2,000 | 3 | Black Zone Warden |
|---|
| VI No Man's Land | x2 | x1.75 | 1,300 | 2,500 | 3 | Forlorn Hope |
|---|
| VII Dead Sector | x2.5 | x2 | 1,600 | 3,000 | 4 | Dead Reckoner |
|---|
Pictures
Operations RecordMedals for every map, mode and threat you clear.
TitlesEach threat's first clear earns a title worn under your name.